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*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
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Used
2020 GMC Terrain
for sale
near
St. Charles, IL
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.






Used
2020 GMC Terrain SLT
Vehicle information
Features
Reviews
I would have purchased the car from this dealership but
I would have purchased the car from this dealership but unfortunately, the price was not competitive. I Would love to try again in the future
I had my 2020 Terrain for 5 years before I had any major
I had my 2020 Terrain for 5 years before I had any major issues out of it. My brake booster needed replaced. After about a month of it being out the shop someone hit and totaled it. Very sad day. I love my Terrain






Used
2020 GMC Terrain SLT
Vehicle information
Features
Reviews
Excellent communication with my service advisor Robert.
Excellent communication with my service advisor Robert. Timely work, and competitive pricing. I would recommend and do recommend this dealer to friends. i will use them myself in the future.
Great Reliability
Great vehicle, 65,000 miles and not a single issue, hoping to get atleast another 100k miles out of it. Extremely reliable. A family member of mine bought a Honda that broke down at 16,000 miles and got stranded. Would absolutely recommend a 2018+ terrain






Used
2020 GMC Terrain Denali
Vehicle information
Features
Reviews
I bought a car from them this week and was very satisfied
I bought a car from them this week and was very satisfied and impressed. I highly recommend salesman Christian Fernandez - he was very professional and made the process personal, comfortable and fun! He provided exceptional service. If possible call ahead for an appointment and come prepared, I'm from out of town Christian helped me get it all done in 1 trip, trade-in and all.
MY TERRAIN
I leased this car before deciding to buy. Its a reliable vehicle and I have never had any break downs since I have had it.. just regular matenance






Vehicle information
Features
Reviews
Very kind courteous helpful.
Very kind courteous helpful. We've bought other cars from the car store. If your looking for a decent used car this is the place. Very clean inside the building. Great people
I LOVE the power
I really enjoy the Terrain. Traded in our beloved Mercedes R350. It was dream to driving on the highway. Our list for new vehicle was easy to get in and out without climbing up or down. No leather seats, hate leather seats, panoramic roof, engine power, get up and go, some luxurious in the vehicle, an easy info console. Before we took a test drive, we did our following tests. How easy to get in and out of the vehicles, leg space (our son is 6'4"). Only wanted two row seating, comfort seating. We checked all other makes. Spend awhile day going from different Dealerships of different makes and models. Didn't want to speak to car salesman, just let us do our preliminary test, on different makes and models. Then we look at the warranties. Finally took take a test drive. Was blown away at the get up and go of the Terrain, pleasantly surprised at the safety features and options it comes with. After almost a month, trips outside the city to the mountains and back. We are really happy with the purchase of the Terrain. Seven years warranty bumper to bumper, ten years on the powertrain. The true fuel economy really surprised me, it doesn't bother me that I have use 91 fuel because of the 2 liter engine. Had to use it on the Mercedes so no change there.






Used
2020 GMC Terrain SLT
Vehicle information
Features
Reviews
The staff was wonderful!
The staff was wonderful! Courteous, professional, and got the job done in less time than I had expected!
Exactly what I wanted.
I absolutely love my vehicle. It is reliable and comfortable. I recommend this vehicle to anyone that wants an SUV and is looking for a change.






Used
2020 GMC Terrain SLT
Vehicle information
Features
Reviews
The service is good, and people are nice.
The service is good, and people are nice. I am happy for this oil change, brake inspection, tire alignment, 27 points check, and repair service after inspection.






Used
2020 GMC Terrain Denali
Vehicle information
Features
Reviews
My rear bumper is damaged with my 2002 silver Honda
My rear bumper is damaged with my 2002 silver Honda Accord. I’m thinking about selling my car and buying myself a new car.






Used
2020 GMC Terrain SLT
Vehicle information
Features
Reviews
We've worked with Tony before & he is very
We've worked with Tony before & he is very knowledgeable & knows just what we like.






Used
2020 GMC Terrain SLE
Vehicle information
Features
Reviews
I have visited more than 10 dealerships for my next lease
I have visited more than 10 dealerships for my next lease but they are all not supportive. Here at Arlington Heights Buick, I met Shelley Barr and made a deal !! She is well informed and tried helping me a lot. Just try to go and meet her then you will realize it.






Used
2020 GMC Terrain SLT
Vehicle information
Features
Reviews
A friendly and professional customer service team - I was
A friendly and professional customer service team - I was provided with all the information I needed and was clearly informed about the purchase options. There was no pressure to buy or hard sell.






GMC Certified
2020 GMC Terrain SLE
Vehicle information
Features
Reviews
I was truly steered by God to this dealership.
I was truly steered by God to this dealership. I am now a customer for life. I found them while searching for a new Hummer ev on the GMC corporate website. I can with great confidence declare that Marquardt GMC and their entire team are truly the pinnacle of what they advertise “Expect, honesty, integrity and transparency.” Frankly, in their quest for professionalism and value for the customer they exceed all expectations. I say this after a lifetime of experience in buying cars as I approach age 70. Please know it’s a smaller, family run type businesses. Note that is has successfully been in business since 1950. That is a testament that they are truly best in class at all that they do. The buying process always seem long, but they go through the effort to make you feel at home, address every concern with care and consideration and make the process comfortable and enjoyable in contrast to the adversarial approach others often take. My wife and I genuinely appreciate the blessings to have found this place, the people, and so happy with our new GMC Hummer Pickup. I can’t speak highly enough about Dave (Sales Mgr) and Tim M, Sales Associate. Thank you very much for the experience, the vehicle and all of the continued support.






Used
2020 GMC Terrain SLE
Vehicle information
Features
Reviews
angel is the best!
salesperson angel was wonderful. he was patient and made it easy for me to understand the transaction. thank you angel for being so kind and never pressuring me at anytime. elaine r






Used
2020 GMC Terrain SLE
Vehicle information
Features
Reviews
They were able to squeeze my car in for repair but it was
They were able to squeeze my car in for repair but it was there 5 days. I am not sure if all the work they did was necessary. Even though i have an extended warranty they said not of the repairs were covered.






Used
2020 GMC Terrain Denali
Vehicle information
Features
Reviews
My salesman Esad was great.
My salesman Esad was great. He was very knowledgeable. Everyone was very friendly and helpful.






Used
2020 GMC Terrain SLT
Vehicle information
Features
Reviews
Great people to work with.
Great people to work with. Very professional, courteous, helpful and thorough. They follow through with all of their commitments. The trade process was straight forward and was just as agreed.






Vehicle information
Features
Reviews
I had a great experience.
I had a great experience. I purchased a car at my second visit. On my first visit Luke the manager was very kind. We decided to return because our impression of Luke. Herman was the sales representative. He was very knowledgeable.

Used
2020 GMC Terrain SLT
Vehicle information
Features
Reviews
Very smooth experience.
Very smooth experience. Seann is an excellent young salesman. Darien will do anything to work with you. Erick, the manager is very accommodating. A++++ dealership.






Used
2020 GMC Terrain Denali
Vehicle information
Features
Reviews
great easy car buying experience with no drama or back
great easy car buying experience with no drama or back and forth. Josh answered all my questions and even followed me home with my new car
Vehicle information
Features
Reviews
Great Cars and also good service.
Great Cars and also good service. Vincent Vega was very helpful thank you Vincent for all your help. This is our third car from Castle Buick GMC. We loved thank you .!
There are 20 matching cars close to your year range.






Used
2019 GMC Terrain SLE
Vehicle information
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Vehicle information
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Used
2018 GMC Terrain SLT
Vehicle information
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GMC Certified
2022 GMC Terrain Denali
Vehicle information
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Used
2022 GMC Terrain SLE
Vehicle information
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GMC Certified
2022 GMC Terrain SLE
Vehicle information
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Used
2019 GMC Terrain SLE
Vehicle information
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Used
2022 GMC Terrain SLE
Vehicle information
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Used
2022 GMC Terrain AWD AT4
Vehicle information
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Used
2022 GMC Terrain SLT
Vehicle information
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GMC Certified
2022 GMC Terrain Denali
Vehicle information
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Used
2022 GMC Terrain Denali
Vehicle information
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Used
2021 GMC Terrain SLE
Vehicle information
Features






Used
2019 GMC Terrain Denali
Vehicle information
Features






Used
2022 GMC Terrain SLT
Vehicle information
Features






Used
2019 GMC Terrain SLT
Vehicle information
Features






Used
2022 GMC Terrain SLT
Vehicle information
Features






Used
2022 GMC Terrain SLE
Vehicle information
Features






Vehicle information
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Used
2021 GMC Terrain SLT
Vehicle information
Features
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GMC Terrain prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Terrain | $30,095 | |
2025 GMC Terrain | $28,122 | |
2024 GMC Terrain | $21,999 | 7 Great deals |
2023 GMC Terrain | $18,890 | 24 Good deals |
2022 GMC Terrain | $18,300 | 16 Great deals |
2021 GMC Terrain | $17,399 | 9 Good deals |
2019 GMC Terrain | $10,950 | 9 Good deals |
2016 GMC Terrain | $7,299 | 5 Good deals |
About the 2020 GMC Terrain
SL shown (base trim).
- Seating
- 5
- Door count
- 4
- Drivetrain
- Front-wheel drive
- Combined MPG
- 27
- Transmission
- 9-Speed A/T
- Engine
- 170.0-hp, 1.5-liter, 4 Cylinder Engine (Gasoline Fuel)

How much does the 2020 GMC Terrain cost?
The 2020 GMC Terrain price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2020 Terrain is $19,673, with pricing starting at $9,500.
What is the MPG of the 2020 GMC Terrain?
The 2020 GMC Terrain offers up to 26 MPG in city driving and 30 MPG on the highway for a combined rating of 27 MPG.
These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle trim, driving conditions, driving habits, vehicle maintenance, and other factors.
What are some similar vehicles and competitors of the 2020 GMC Terrain?
The 2020 GMC Terrain compares to and/or competes against the following vehicles:
Is the 2020 GMC Terrain reliable?
The 2020 GMC Terrain has an average reliability rating of 4.5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2020 Terrain owners.
Is the 2020 GMC Terrain a good SUV?
Below are the Cars.com consumer ratings for the 2020 GMC Terrain.
- Comfort 4.8
- Interior 4.6
- Performance 4.5
- Value 4.4
- Exterior 4.8
- Reliability 4.5
88% of drivers recommend this car
- Comfort 4.8
- Interior 4.6
- Performance 4.5
- Value 4.4
- Exterior 4.8
- Reliability 4.5
Denali (2 styles)
Style | |
---|---|
AWD 4dr Denali | FWD 4dr Denali |
Inventory price | |
Starting at $39,900 | Starting at $38,300 |
Combined MPG | |
23 | 24 |
Engine | |
252.0-hp, 2.0-liter, 4 Cylinder Engine (Gasoline Fuel) | 252.0-hp, 2.0-liter, 4 Cylinder Engine (Gasoline Fuel) |
SL (1 style)
Style |
---|
FWD 4dr SL |
Inventory price |
Starting at $25,000 |
Combined MPG |
27 |
Engine |
170.0-hp, 1.5-liter, 4 Cylinder Engine (Gasoline Fuel) |
SLE (2 styles)
Style | |
---|---|
AWD 4dr SLE | FWD 4dr SLE |
Inventory price | |
Starting at $30,000 | Starting at $28,400 |
Combined MPG | |
26 | 27 |
Engine | |
170.0-hp, 1.5-liter, 4 Cylinder Engine (Gasoline Fuel) | 170.0-hp, 1.5-liter, 4 Cylinder Engine (Gasoline Fuel) |
SLE Diesel (1 style)
Style |
---|
FWD 4dr SLE Diesel *Ltd Avail* |
Inventory price |
Starting at $0 |
Combined MPG |
32 |
Engine |
137.0-hp, 1.6-liter, 4 Cylinder Engine (Diesel Fuel) |
SLT (2 styles)
Style | |
---|---|
FWD 4dr SLT | AWD 4dr SLT |
Inventory price | |
Starting at $31,200 | Starting at $32,800 |
Combined MPG | |
27 | 26 |
Engine | |
170.0-hp, 1.5-liter, 4 Cylinder Engine (Gasoline Fuel) | 170.0-hp, 1.5-liter, 4 Cylinder Engine (Gasoline Fuel) |
SLT Diesel (1 style)
Style |
---|
FWD 4dr SLT Diesel *Ltd Avail* |
Inventory price |
Starting at $0 |
Combined MPG |
32 |
Engine |
137.0-hp, 1.6-liter, 4 Cylinder Engine (Diesel Fuel) |
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
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